Characteristics of Dry Matter Production and Partitioning of Dry Matter to Panicles in High Yielding Semidwarf Indica and Japonica-Indica Hybrid Rice Varieties.

Responses of Yielding Ability, Sink Size and Percentage of Filled Grains to the Cultivation Practices in a Chinese Large-Panicle-Type Rice Cultivar, Yangdao 4

“…Consequently, a high PFG was maintained in YD even with a large sink size. This was consistent with the high percentage of T in panicle weight or yield in other large-sink cultivars (Song et al, 1990;Saitoh et al, 1991;Kusutani et al, 1993;Miah et al, 1996;Ueda et al, 2000b;Katsura et al, 2007). Moreover, the W + T in YD increased with increasing sink size, which might also contribute to the smaller decrement of PFG.…”

“…However, most of these studies analyzed only the cultivar differences in yielding ability under limited cultivation conditions (Takeda et al, 1984;Song et al, 1990;Saitoh et al, 1991Saitoh et al, , 1993Wang et al, 1991;Yamamoto et al, 1991;Amano et al, 1993Amano et al, , 1996Kusutani et al, 1993;Miah et al, 1996;Shiotsu et al, 2006;Katsura et al, 2007), and few reports are available on the effects of a wide range of cultivation practices on the yielding ability (Weng et al, 1982;Komatsu et al, 1984;Kubota et al, 1988;Sumi et al, 1996). Analysis of the effects of cultivation practices on the yielding ability in relation to sink size and PFG might reveal practical information on high-yielding cultivation of these large-panicle-type cultivars.…”

Effects of Dry Matter Production, Translocation of Nonstructural Carbohydrates and Nitrogen Application on Grain Filling in Rice Cultivar Takanari, a Cultivar Bearing a Large Number of Spikelets

“…Takanari has been reported to maintain a high crop growth rate even after heading (Xu et al, 1997a, b), whereas the cultivars used in other studies showed relatively low growth rates after heading (Song et al, 1990 ;Kusutani et al, 1993). Miah et al (1996) reported that crop growth rates after heading showed a negative correlation with sink size, using various cultivars including semi-dwarf Indica. The higher assimilation during the early period after heading in Takanari is confirmed by the fact that NSC were often still accumulating in culms during 10 days after heading (Fig.…”

Influence of Zinc and Iron Fortification on Yield and Post-Harvest Studies of Different Rice Cultivars (Oryza sativa L.)

“…PBNR-03-2 was the most efficient variety for conversion of biomass towards economic parts. Higher yields can be obtained by physiological process involving high accumulation of photosynthates and their partitioning (Miah et al, 1996).…”